Stone-planing machine



(No Model.) 3 Sheets-*Sheet l. E. SMALLWOOD. STONE PLANINGF MACHINE.

Patented Aug. 20, 1889..

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3 Sheets-Sheet 2.

E. SMALLWOOD.

sToNE PLANING- MAGHINE.

(No Model.)

No. 409,249. Patented Aug. 20.1889.

W'Zuesses (No Model.)

3 Sheets-Sheet 3'. E. SMALLWOOD. STONE PL'ANING MACHINE.

No. 409,249. Patented Aug. 20, 1889.

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MTE@ rarasv ATENT EDWARD SMALLIVOOI), OF ELYRIA, OHIO.

sToNE-PLANiNe MACHINE.

SPECIFICATION formingr part of Letters Patent No. 409,249, dated August 20, 1889.

Application iiled February 28, 1889. Serial No. 301,440. (No model.)

To all whomj t may concern,.-

Be lit known that I, 'EDWARD SMaLravooD, of Elyria, in the county of Lorain and State of Ohio, have invented certain new and useful Improvements in Stone-Planing Machines; and I do hereby declare the following to be a pull, clear, and exact description of the in- "ention, such as will enable others skilled in ne art to which it pertains to make and usc he same.

My invention relates to improvements in tone-planing machines; and it consists in certain features of construction and in com bination of parts hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure l is Fig. 2 is an end elevation. Fig. 3 is a side elevation. Fig. et is an enlarged detail of the horizont-al cutter-cylinder, the same being in transverse section.

A represents a table reciprocating on ways A on a base A, and has a movable top A2, adjustable vertieallyto accommodate different thicknesses of stone laid thereon, such adjustment being effectedby means of vertical screwrods a., which latter support the table-top and screw through threaded holes in the table A. These screws are provided with worin-gears a, that engage worms l), the latter being mounted on the respective shafts B. These shafts are provided with gears I3', that engage in the com` mon gear C on the shaft C. These shafts are journaled in suitable' boxes connected with.,

the movable top A2, and shaft C has cranks c at either end thereof, by operating which the different screws dare operated in unison in raising or lowering the table-top.

D D are side fra-mes rigidly connected on top by cross-beam D and at their bottom by the base A3, these members constituting a strong heavy rigid frame spanning the table.

E is a horizontal cutter-cylinder mounted on shaft E. This shaft is journaled in stationary boxes d of the side frames D. Cylinder E, on account of its size and length, is more conveniently made in transverse sections; but this is not material. The cutters e are usually bars of steel from one and a half to two inches square in section and set in corresponding sockets in the cylinder at about the angle shown in Fig. et, the inner ends. of

these cutters abutting., against adjustingscrews c. As these screws sustain the endthrust of the cutters, they should be of large size-say one inch in diameter. These screws are provided with jam-nuts e2, such screws and jam-nuts being operated by means of s-uitable socket-wrenches.

To hold the cutters Yfirmly against their seats, binding-screws cis are provided, and at the outer ends of the holes for reeeivin gthese binding-screws recesses e4 are formed to receive theheads of the screws; The different cutters are distributed over the surface of the cylinder, so that they travel in diiferent paths, and preferably no two cutters engage the stone at the same time 5 but the aggregate cut of the diiferent tools traverses the'entire width of the stone.

Shaft F. is provided with driving-pulleyF.2 and sprocket-wheel E for operating the feed mechanism. F is a cross-head operating on vertical ways d of the side frames, with screws d2 for raising and lowering the crosshead. G G are yolies having undercut walls at g g, that are embraced by corresponding ways ff of the cross-head, with screws F for moving the respective yokes lengthwise the cross-head. 1I I-I are upright cuttercylin ders, constructed substantially the same as cylinder aforesaid. Cylinders II are respectn ivcly mounted on vertical shafts Il', these shafts being journaled in mounted suitable boxes 71, connected with the respective yokes.

The shafts II are provided with drivingpulleys, as shown at 7L. In operating the planer cylinders Il, by means of screws d2, are depressed until the lower ends thereof are iiush with or a trifle below the under surface of the stone, and by means of hand-wheels f cylinders H are adjusted laterally toward or from each other to such position that they will engage and dress the edges of the stone while the latter is being fed under and operated upon by cylinder E, so that the top surface and two edges of the stone are dressed while the stone is passing once through the machine.

Sprocketwheel E3 is connected by an endless chain K with sprocket-wheel I, thelatter being mounted on lateral shaft I. The lat* ter is provided with worm fi, that engages IOO worm J, this gear being mounted on screwrod J. The latter' engages nut A3 of the table for feeding the same. For reversing the table cylinder E is rotated in the reverse direction. The machine is supposed to be large enough to dress the largest-sized stone that can practically be'handled and shipped, the cylinder E being sometimes ten or twelve feet in length. The ends of the cutters may be beveled at such angles as are found most effective in dressing different kinds of stone, and, if desired, the cutting-tools may be provided with diamond points.

What I claim is l. In a machine for dressing stone, the com'- bination, with a base having ways and side frames secured to said base, of a car mounted to .move on said ways, a platform carried by the car and adjustable to and from the car, and a rotary cutter mounted in the side frames and above the car, substantially as set forth.

2. In a machine for dressing stone, the combination,with a frame carrying fixed ways, of a car mounted to move on said ways, a platform on said car and adjustable to and from the same, a cylinder mounted in fixed bearings above the platform, and cutting-tools fixed in said cylinder, substantially as set forth.

3. In a machine for dressing stone, the combinatiomwith a frame carrying fixed ways, of a car mounted to reciprocate on said ways, a platform mounted on screw-rods carried by the car,wormwheels ou the screw-rods,worms for operating the worm-wheels to raise and lower the platform, gear-wheels carried by the worms, and a shaft carrying gear-wheels meshing with the worm gear-wheels, whereby all the worms may be operated simultaneously, and a rot-ary cutter mounted in fixed bearings above the platform, substantially as,

therein in fixed bearings, cutting-tools pro-A jecting from said cylinder, a cross-head having dovetailed grooves at each end, yokes, each having a dovetailed tenon to enter said grooves, cylinders carrying cuttingtools mounted in said yokes, and screws for moving said yokes lengthwise the cross-head, substantially as set forth.

6. In amachine for cutting stone, the combination,with a frame, of a horizontal cylinder mounted therein in fixed bearings and carrying cutting-tools, a vertically-movable cross-head, mechanism for raising both ends of the cross-head simultaneously, yokes carried by the cross-head at its ends, mechanism for moving said yokes lengthwise of the crosshead, and rotary cutters carried by said yokes, substantially as set forth. l

In testimony whereof I sign this specification, in the presence of two witnesses, this 29th day of December, 1889.

EDVARD SMALLVOOD.

It is hereby certified that in Letters Patent No. 409,249, granted August 20, 1889, upon the application of Edward Smallwood, of Elyria, Ohio, for an improvement in Stone-Planing Machines, an error appears in the printed specification requiring cor rection, as follows: In line 73, page 2, the year date 1889 7 should read 1888,- and that the Letters Patent should be read With this correction therein that the same may conform to the record of the case in the Patent Office. I

Signed, countersigned, and sealed this 10th day of September, A. D. 1889.

GYRUS BUSSEY, Assistant Secretary of the Interior.

[SEAL] C ountersigned G. E. MITCHELL,

Commissioner of Patents. 

